14 Clinical Trials for Various Conditions
To evaluate the effects of tradipitant relative to placebo on satiation, gastric volume, gastric accommodation, and gastric emptying in healthy volunteers.
The purpose of this study is to gain a better understanding of the satiation measures that influence human eating behavior in regard to intake of large portion sizes at a meal. The investigators hypothesize that satiation measures will influence the magnitude of the portion size effect at a meal. Additionally, other individual characteristics will be examined for their influence on the portion size effect. The portion size effect will be measured by serving a test meal once a week for four weeks in which the portion size of the entree will be varied.
This research study is being done to compare the effects of Aprepitant and placebo on fasting gastric volume, accommodation volume, satiation (fullness) and gastric emptying.
The purpose of this study is to evaluate the effects of relamorelin (RM-131) on gastric volume, motor and sensory effects in healthy patients.
This study will investigate the effects of different fermenting fibers on liking of foods.
Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Participants will be randomly assigned to one of four conditions varying in the portion size and quantity of junk food provided: small quantity of food packaged in small portions (SSP), small quantity of food packaged in large portions (SLP), large quantity of food packaged in small portions (LSP), and large quantity of food packaged in large portions (LLP). A box containing four different junk foods, packaged according to one of the four conditions, will be given to participants to take home for three days. The total amount of food consumed from the box over the three days will be measured. It is anticipated that portion size and quantity of food, both independently and combined, will influence intake, such that larger portion sizes and quantity of food provided to participants will produce greater intake.Subject Population: We propose to recruit 60 healthy men and women, aged 18-50 years, with a body mass index (BMI) of less than or equal to 28. Participants will be non-smokers, unrestrained eaters, and have no known food allergies to the foods used in the investigation.Methods/Design: Participants will be randomly assigned to one of four conditions, varying in portion size (small versus large) and quantity of food provided (small versus large). A box containing four junk foods, packaged according to one of the conditions, will be provided to participants. They will be encouraged to eat as much or as little of the food as they want, but to at least taste each of the four foods over the three-day period. During this time, they will be instructed to not eat any other junk foods. At the end of the three-day period, participants will return the box with any remaining uneaten junk food.Data Analyses: The dependent variables, the amount of grams and kcals consumed from the provided junk foods, will be examined between the four different conditions.Significance: If portion size and quantity are related to intake, subsequent studies will develop clinical interventions related to reducing portion size and/or quantity of food available in the household.
One obvious property difference between energy-yielding beverages and solid foods is the oral mechanical processing required to prepare the two food forms for swallowing. Considerable human data are consistent with a contribution of mechanical stimulation to appetite suppression. However, no study has isolated this property and assessed its influence on ingestive behavior in humans. This is the aim of the present study. The null hypothesis is that food rheology will have no effect on these indices. The alternate hypothesis is that increased mechanical stimulation will result in stronger satiation/satiety and reduced energy intake. Further, it is hypothesized that the effects of mastication will be less evident in obese compared to lean individuals.
Eating frequency may play an independent role in appetite regulation, overall caloric consumption and measures of long-term health or disease risk. Some literature recommends frequent eating, but pilot data suggest that this type of eating pattern may be harmful to health since it leaves the body in a perpetual fed state and increases systemic inflammation. Therefore, the investigators will conduct a clinical trial in 50 healthy adults to compare a low frequency eating pattern to a high frequency eating pattern in relation to blood-based markers of inflammation, metabolic health and appetite. Study results will be applied to recommendations for eating frequency in the context of an overall healthy diet.
The purpose of this study is to examine if chewing gum before an eating bout will increase the rate of habituation and subsequently reduce energy intake within the eating bout.
One important factor determining school performance is the consumption of breakfast. While research has shown that older children perform better in school after consuming breakfast, there are little data for preschool-age children. Consuming breakfasts with different macro- and micronutrient contents may have different effects on performance, which may be associated with variations in satiation and satiety during and after the different breakfasts. In addition, children who consume breakfast have better diet quality than children who skip breakfast. The investigators will conduct a community based, randomized, crossover trial in 4-5 year old children over 7 weeks to examine the short-term effect of feeding preschoolers three different intervention breakfast types: high protein, high-fiber, or high protein and high fiber compared to a usual breakfast served at the preschool. The investigators expect that the children consuming any of the three experimental breakfasts will consume less overall calories and have better diet quality and memory performance compared to children who have the usual breakfast. The investigators hypothesis is that preschoolers will experience the highest level of satiety as well as highest level of overall diet quality when they consume the combined high-protein and high-fiber based breakfast foods. This study will be conducted at Bauer Family Resources in Lafayette as these are the sites of Head Start programs, which are preschools for children from low-income families. Children from families of low income are more likely to have poor diet quality and poor school performance compared to children from families with higher incomes. Therefore, this population is most in need of this type of intervention.
The objective of the proposed research is to conduct a within-subject, experimental study that will describe mothers' feeding practices during typical bottle-feeding conditions and will examine whether removal of visual cues related to the amount of milk/formula in the bottle will alter these feeding practices. The investigators hypothesize that mothers will show higher levels of infant-directed feeding practices and lower levels of mother-directed feeding practices when using opaque, weighted bottles compared to when using standard, clear bottles. The investigators also hypothesize that infants will consume less breast milk or formula when fed from opaque, weighted bottles compared to when fed from standard, clear bottles.
Investigators are interested in learning how appetite responds to pasta containing different amounts of protein and fiber. In this research study, subjects will be asked to eat as much as they want of pasta containing different amounts of protein and fiber mixtures, thereafter subjects will describe their feelings of hunger, fullness and desire to eat for 3 hours afterwards. Subjects will be asked to do this on three separate occasions.
Obesity is an important public health problem in the United States. The investigators hypothesize that stomach injections of botulinum toxin A (BTA), delivered through an endoscope using endoscopic ultrasound (EUS), may cause delayed gastric emptying, satiation, and reduction in body weight. This protocol is designed to study the effects and safety of gastric BTA injections. Subjects are randomized to receive placebo or one of two different doses of BTA injected into the stomach during one endoscopy, performed via the mouth. Gastric emptying, satiation, symptoms, psychological dimensions of eating behavior, and caloric intake are recorded before and after injections, and subjects are seen in follow-up for 24 weeks.
There is a paucity of information on whether and how the composition of formulas fed to infants influences their short-term feeding behaviors during the first few months of life. The purpose of this study is to investigate whether the composition of infant formula affects infants' feeding behaviors, in particular, how much formula is consumed within a given feed (i.e., measure of satiation) and how much time elapses after the feed until the infant exhibits signs of hunger (i.e., measure of satiety). The investigators will also examine the relationship between the composition of infant formula consumed and infant temperature, activity, sleep, and mothers' perceptions of infants' intake and regulatory behaviors.